Quantum-chromodynamic corrections to parity-violating asymmetries inepreactions at highQ2

Abstract

We examine quantum-chromodynamic (QCD) corrections to the ${Q}^{2}$ and $y$ dependence of various asymmetries in $\mathrm{ep}$ deep-inelastic scattering produced by the parity-violating weak neutral currents of the Weinberg-Salam model. We find, for ${Q}^{2}$ in the range $10\ensuremath{\le}{Q}^{2}\ensuremath{\le}{10}^{4}$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^{2}$, that a small change in the value of ${{sin}^{2}\ensuremath{\theta}}_{W}$ can mask the small (\ensuremath{\sim}5-10%) QCD corrections even if data are taken over the entire range of $y$. We conclude that QCD does not produce significantly large modifications to the weak asymmetries considered for the above range of ${Q}^{2}$.